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<title>算法提高 8-1因式分解</title>
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 <p>【问题描述】<br />
设计算法，用户输入合数，程序输出若个素数的乘积。例如，输入6，输出2*3。输入20，输出2*2*5。<br />
【样例】<br />
与上面的样例输入对应的输出。<br />
例：</p>
<p>&nbsp;<img src="http://lx.lanqiao.cn/RequireFile.do?fid=JGqjQ8DY" width="293" height="54" alt="" />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</p>
<p><img src="http://lx.lanqiao.cn/RequireFile.do?fid=JAq2yLhh" width="204" height="39" alt="" /><br />
【数据规模和约定】<br />
输入数据中每一个数在int表示范围内。<br />
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